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Does Blood Flow Restriction Therapy Improve Leg Strength in Patients with a Painful Total Knee Arthroplasty ?  12


        Results                                                 Conclusion



           The mean age of the patients was 68.5 years.    2    In patients with FI and weakness after TKA, BFR

                                                                did not provide any advantage over PT alone with
           BFR  on  patients  with TKA instability  did not     respect to improvement in quadriceps and
           cause any adverse effects.  2                        hamstring strength.  2


           Rates of subsequent revision TKA did not vary        Over 83% of patients avoided revision TKA after a

           between  BFR  (8.3%)  and  non-BFR  (16.7%)          focused  PT  program  irrespective  of  additional
           groups (p=0.3362).  2                                BFR. 2


                                                                References


         Table: Percentage difference between pre-PT and
         post-PT in the affected leg 2                          1. Jones R, Nwelue E, Romero JA, Brown TS. The painful
                                                                total knee arthroplasty: Keys to diagnosis. Semin

                                                                Arthroplasty. 2018;29(1):58-64.
                                              Non-BFR           doi:https://doi.org/10.1053/j.sart.2018.04.008.
                            BFR group
                                               group

           Number of            12               36             2. Majors IB, Mears SC, Oholendt CK, Hargett NA, Barnes
            patients                                            CL, Stambough JB. Does Blood Flow Restriction Therapy

                                               28.77%           Improve Leg Strength in Patients With a  Painful Total
             Flexion      25.68%-29.98%      to 32.85%          Knee Arthroplasty? J Arthroplasty. February 2022.
            strength       (p=0.1994 to      (p=0.0145
             metrics          0.2392)        to 0.0255)         doi:10.1016/j.arth.2022.02.021.


                                             23.29% to          3. Vopat BG, Vopat LM, Bechtold MM, Hodge KA. Blood
                          19.39%-23.39%
            Extension                         34.17%            Flow Restriction Therapy: Where We Are and Where We
         strength metrics  (p=0.3315 to      (p=0.0544
                              0.3901)                           Are Going. J Am Acad Orthop Surg.
                                             to 0.0955)
                                                                2020;28(12):e493-e500. doi:10.5435/JAAOS-D-19-00347.


        Difference in ISMs pre-PT and post-PT                   4. Blood Flow Restriction Therapy - MU Health Care.
                                                                https://www.muhealth.org/conditions-treatments/therapy
           ISMs after PT in the BFR group and non-BFR           /blood-flow-restriction-therapy. Accessed April 21, 2022.

           group were not significantly different. 2


           Non-BFR  group  had  statistically  significant

           strength improvement in all flexion ISMs, but
           not in extension ISMs. 2


           BFR  group  had  strength improvement in  all
           flexion and extension ISMs, but they were not

           statistically significant. 2
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